Samsung has confirmed to PhoneScoop a few unannounced features included in the Sidekick 4G. The Sidekick 4G will included both the Mobile Hotspot Feature as well as tethering on T-Mobile’s HSPA+ network. The Sidekick 4G will ship with a 2 GB microSD card along with the 1 GB of onboard memory. No word as to what size memory card the Sidekick 4G will take. If any of these questions have been bugging you since the Sidekick 4G was announced two nights ago, wonder no more!